Infiltration by the book
By Cal Thomas
January 18, 2006

Beginning with the Revolutionary War when British agents and sympathizers attempted to derail independence, there have been people who have tried to infiltrate the United States to undermine and destroy it.

In modern times, communism and fascism have sent agents among us, but we discovered their plans and defeated them here and abroad.

Now comes what may be the greatest threat: radical Islam, whose "agents" may have established a base more solid and more dangerous than anything we've encountered before. The good news is they speak openly of their intentions. The bad news is many of us do not take them seriously. Commentary